Sequence Viewer 3.28.0.1

JavaScript is required.

Welcome to NCBI's Sequence Viewer 3.28.0.1

Example Links:

This link provides a look at human chromosome 1. There are two
panels shown by default: an overview panel showing the density
of annotated genes along with a select number of genes for
reference; and a zoomed in graphical view showing a region of
the chromosome itself.

This link shows a reference genomic region − that is, a genomic
region that has undergone substantial curation by staff at NCBI.
This particular record shows the beta globin locus on chromosome
11. Two panels are shown by default: an overview panel showing
the density of annotated genes along with a select number of
genes for reference; and a zoomed in graphical view showing
individual features on the record.

This link shows a sample mRNA sequence from the Mammalian Genome
Collection. This link will open with two views by default: a
graphical panel showing the feature annotation on the sequence;
and a sequence panel providing the bases of the sequence itself.

This link provides an example of how a viral genome can be
shown. The link will open with three panels (an overview
graphical panel; a zoomed in graphical panel; and a sequence
panel); additionally, a marker is set at position 800.